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Originally posted by Now_Then
Well it prob aint a burst sewerage pipe - firstly sewerage is not usually a lovely sandy colour! and I don't think it's ever pumped at that pressure.
As for water main that is possible - but it's still a hell of a lot of pressure required for that - and a hell of a big diameter pipe too - I've personally seen a 36" main at about 4 bar (40 meters) pressure go,
Could it not be a high pressure airline? for industry of some sort - or even intentional using air?
Edit: and that sand does look pretty dry to me.
[edit on 23/5/2008 by Now_Then]
Originally posted by Earthscum
I was thinking about that, but methane is lighter than air. I was thinking that being so close would stifle the air, but I was thinking CO2, which WOULD have killed those guys, due to the fact that it is heavier than the air.
[edit on 23-5-2008 by Earthscum]